kid, youngster
Hola, chaval.
Hello, kid.
Era el chaval más afortunado del mundo.
He was the luckiest kid in the world.
— Buenos Muchachos (1990)
Bajá esa arma, chaval.
Put that gun down, kid.
— Tropa de Élite 2 (2010)
Tom es un chaval con trece años.
Tom is a thirteen-year-old boy.